Three-dimensional structure formed with precision fold technology and method of forming same

A sheet of material folded and secured to form a three-dimensional corner structure, the sheet of material comprising:

• a first sheet portion folded along a first fold line to produce a first corner, the first sheet portion including an inwardly projecting coupling shoulder displaced out-of-plane forming a receiving slot, the coupling shoulder spaced from the first fold line, the first sheet further including an aperture formed by the out-of-plane displacement of the coupling shoulder;
• and
• a second sheet portion folded along a second fold line to produce a second corner member, the second sheet portion having a registration flange, a portion of which is received in the slot of the coupling shoulder, the registration flange portion having an outwardly projecting latch member spaced from the second fold line and extending into the aperture of the first sheet portion producing an interference fit between the coupling shoulder and the registration flange portion.